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NT511 AD

NT511 AD

NT511 AD

Product catalog summary
Overview: The NT511 AD is a control unit designed for managing the temperature of medium voltage (MV) dry-type and cast resin transformers, as well as powering the fan cooling system. It is particularly recommended for use with tangential fans due to its six 230 Vac outputs, each supporting up to 1.5 Amps.
Specifications:
  • Power Supply: 230 Vac ± 10% 50/60 Hz.
  • Inputs: 4 RTD PT100 sensor inputs with 3 wires, protected against electrical and magnetic noise, with cable compensation up to 500 meters.
  • Outputs: 2 alarm relays (ALARM-TRIP), 6 fan outputs (230 Vac 1.5 Amp max), 1 fault relay, RS485 Modbus RTU output, and optically isolated 4-20mA output.
  • Protection: Electromagnetic noise protection (CEI-EN61000-4-4), dielectric strength of 1500 Vac for 1 minute.
  • Environmental Conditions: Operating temperature from -20°C to +60°C, humidity up to 90% non-condensing.
  • Housing: Steel electrostatically painted, IP50 polycarbonate front film.
Features:
  • Equipped with dry contacts for FAULT, ALARM, and TRIP signals.
  • Self-diagnostic capabilities for temperature sensors and data storage.
  • Display for temperature and programming parameters, with LEDs indicating various statuses and modes.
  • Manual and automatic fan operation modes, with alarm reset functionality.
Options:
  • Basic version without digital or analog outputs (code 1CN0010).
  • Version with RS485 digital output (code 1CN0011).
  • Special coating for electronic cards for harsh weather conditions.
Dimensions: 210 x 260 x 85 mm, panel cut-out 232 x 182 mm, color RAL 7035.
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Catalog excerpts

NT511 AD-1

La NT511 AD è una centralina studiata per il controllo della temperatura di trasformatori MT a secco o incapsulati in resina e l’alimentazione dell’impianto di ventilazione. È raccomandata in abbinamento a ventilatori tangenziali, grazie alla presenza di 6 uscite da 230 Vca 1.5 Amp max (ciascuna). Ogni singolo ventilatore è protetto da un fusibile e in caso di guasto la centralina fornisce una segnalazione di FAULT. La struttura metallica è studiata per l’installazione su un box per trasformatori. Per il comando dei ventilatori sono presenti 6 uscite attive che forniscono direttamente l’alimentazione ai motori. ALIMENTAZIONE 230 Vca ± 10% 50/60 Hz. Altre versioni - NT511 BASIC centralina base senza uscite digitali e analogiche (cod. 1CN0010). - NT511 RS485 centralina con uscita digitale RS485 Modbus RTU (cod. 1CN0011). 4 ingressi PT100 permettono la lettura della temperatura dei 3 avvolgimenti ed eventualmente del nucleo o dell’ambiente. The NT511 is a comby unit to control the For the fans control there are 6 active temperature of MV dry type and cast resin outputs which provide power directly to the cooling system. All our units can also be supplied with a In AD version it is equipped with Analog special coating on the electronic cards, resistant to di昀케cult weather conditions, outputs simultaneously. It is recommended with the use of tangential fans, thanks to the presence of 6 outputs 230 Vac 1.5 A max (each). temperature and humidity (which are in tropical climates). POWER SUPPLY Every single fan is protected by a fuse and in case of failure the unit provides a FAULT OTHER VERSIONS - NT511 BASIC unit without any digital or installation on the box of the transformers. 4 PT100 inputs allow the reading of the temperature of the 3 windings and in case of the core or the ambient. The unit is equipped with dry contacts to signal FAULT, ALARM and TRIP. La centralina è dotata di contatti puliti per la segnalazione di guasti (FAULT), allarme (ALARM), sgancio (TRIP). Ascolta, Realizza, Propone, Progetta. Listen, Realize, Propose, Design. analog outputs (cod. 1CN0010). - NT511 RS485 unit with digital RS485 Modbus RTU outp

 Open the catalog to page 1
NT511 AD-2

Specifiche Tecniche Alimentazione • 4 ingressi per sonde PT100 a 3 fili • Collegamenti su morsettiere estraibili • Canali di ingresso protetti contro i disturbi elettromagnetici • Compensazione cavi per sonde fino a 500 m (1 mm2) • 2 rele di allarme (ALARM-TRIP) • 6 uscite per alimentazione ventilatori 230 Vca 50/60 Hz 1.5 Amp. Max (protette con un fusibile da 2 Amp.) • 1 rele guasto sonde, o anomalia funzionamento (FAULT) • Rele di uscita con contatti da 5A-250 Vca cos$=1 • Costruzione in accordo alle normative CE • Protezione contro disturbi elettromagnetici CEI-EN61000-4-4 • Rigidita dielettrica...

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.